When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
If a = -1 and z = 4, what is the value of -5a(a - z)?
| -25 | |
| 30 | |
| -448 | |
| -216 |